204290289 has 16 divisors (see below), whose sum is σ = 345888640. Its totient is φ = 116737200.

The previous prime is 204290267. The next prime is 204290293. The reversal of 204290289 is 982092402.

204290289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204290289 - 2⁵ = 204290257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204290389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540262 + ... + 540639.

It is an arithmetic number, because the mean of its divisors is an integer number (21618040).

Almost surely, 2^204290289 is an apocalyptic number.

It is an amenable number.

204290289 is a deficient number, since it is larger than the sum of its proper divisors (141598351).

204290289 is a wasteful number, since it uses less digits than its factorization.

204290289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080917 (or 1080911 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 204290289 is about 14293.0153921417. The cubic root of 204290289 is about 588.9556253640.

The spelling of 204290289 in words is "two hundred four million, two hundred ninety thousand, two hundred eighty-nine".